river system
a river system.
Tributaries.
Feeder creeks, or tributaries.
tributaries
The tributaries of a river are the streams or smaller rivers that join the main river. for example, the Missouri River is the chief tributary of the Mississippi.
The main tributaries of the Thames are the Cherwell, Wey and Medway.
drainage system (guessing)
Tributaries
Tributaries
The streams that contribute to a river system are called tributaries.
The streams that contribute to a river system are called tributaries.
what is a river and it"s tributaries
what is a river and it"s tributaries